How much Web traffic is spiders and bots?

I'd like to find some kind of authoritative analysis or study on the average percentage of page views to a Web site that are coming from spiders and bots. For example, if I don't filter out any spiders or bots from my Webtrends report, can I say that XX% of those page views were not valid? I realize the number could vary but would appreciate any educated guesses or additional reading materials, thanks.
mamadouthiamAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

mrcoffee365Commented:
We find that about 7% of a medium-traffic site is requests from bots.  That comes to 20% of the bandwidth, presumably because the bots always get all of the large docs from the site.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Shalom CarmelCTOCommented:
http://arxiv.org/ftp/cs/papers/0701/0701173.pdf

The summary says: "Our best estimate is that spiders contributed 46% of sessions and 20% of the Web traffic."

I think that the ratios may differ greatly with the type of web site. For example, my web site behaves more like mrcoffee365 mentioned.
0
mamadouthiamAuthor Commented:
Good info so far but would like some more input - will probably split point (reference to articles, docs appreciated).

mama
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Development

From novice to tech pro — start learning today.